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JEE Main2016ChemistryCoordination CompoundsActual

Which one of the following complexes shows optical isomerism? (en=ethylendiamine)

Options

  1. At r a n s C o e n 2 C l 2 C l
  2. BC o N H 3 4 C l 2 C l
  3. CC o N H 3 3 C l 3
  4. Dc i s C o e n 2 C l 2 C l

Correct answer

D. c i s C o e n 2 C l 2 C l

Step-by-step solution

[ Co ( NH 3 ) 3 Cl 3 ] shows two geometrical isomers and both can't show optical isomerism due to presence of plane of symmetry. c i s   C o e n 2 C l 2 C l shows optical isomerism t r a n s     Co e n 2 C l 2 C l forms identical mirror image due to presence of plane of symmetry. [ Co ( NH 3 ) 4 Cl 2 ] shows geometrical isomerism.

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